Hayashidani II tracksite: Aptian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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| tracks | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Japan | State/province: | Fukui |
| Coordinates: | 35.9° North, 136.8° East (view map) | ||
| Paleocoordinates: | 43.7° North, 147.2° East (Wright 2013) | ||
| Basis of coordinate: | based on nearby landmark | ||
| Altitude: | 52 meters | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| Stage: | Aptian | 10 m.y. bin: | Cretaceous 3 |
| Key time interval: | Aptian | ||
| Age range of interval: | 121.4 - 113.2 m.y. ago |
Stratigraphy
| Geological group: | Tetori | Formation: | Akaiwa | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Akaiwa Subgroup
Based on zircon U-Pb dating, the zircon grains from the tuff of the Akaiwa Formation of the Tetori Group in the Shiramine area which are correlated with the Nochino Formation has an age of 121.2 ± 1.1 Ma (Sakai et al., 2019). | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | trace |
| Size of fossils: | macrofossils |
| Spatial orientation: | life position |
| Temporal resolution: | snapshot |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Collection methods: | surface (in situ) |
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Also known as: | Izumi | ||
| Database number: | 166016 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2015-02-02 17:18:23 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2015-02-02 17:18:23 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 54268. | Y. Azuma and Y. Tomida. 1995. Early Cretaceous dinosaur fauna of the Tetori Group in Japan. In A. Sun, Y. Wang (eds.), Sixth Symposium on Mesozoic Terrestrial Ecosystems and Biota, Short Papers 125-131 [M. Carrano/M. Carrano/P. Wagner] |